Burning of coal is an example of ______.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3. i.e. combination reaction.
Coal burns in the air to form carbon dioxide gas. In the presence of oxygen, hydrogen burns to produce water in the form of steam. Upon cooling, it becomes liquid. Combustion reactions: Burning of coal and formation of water are examples of combination reaction.
A combination reaction is a reaction where two or more elements or compounds combine to form a single compound. Such reactions are represented by equations of the following form: X + Y → XY.
Additional Information-
| Decomposition reaction | A chemical reaction in which one reactant breaks down into two or more products. |
| Double displacement reaction | A type of reaction where part of of one reactant is replaced by part of another reactant. |
| Displacement reaction | The type of reaction in which part of one reactant is displaced by another reactant is called displacement reaction. It is also called a replacement reaction. |